Vapi
vapi.ai
Developer platform for building and deploying AI voice agents over the phone.
Quick Information
- Category:
- Business
- Pricing:
- Usage-based
- Platforms:
- Web, API
- Free Plan:
- No
- API Available:
- Yes
- Last Verified:
- September 2026
What Is Vapi?
Vapi is a developer-first orchestration platform for building AI voice agents, providing the coordination layer between a user's chosen LLM, speech-to-text engine, text-to-speech voice, and telephony provider with sub-600ms latency. Its Assistants API configures individual agents, Squads chain multiple specialized agents together inside one call, Function Calling lets agents trigger external APIs mid-call, and Knowledge Base Support (RAG) lets agents answer using uploaded PDFs or text documents during live calls. Pricing starts at $0.05/minute as Vapi's own platform fee (covering orchestration only, not the underlying voice stack) — third-party costs for STT, TTS, LLM, and telephony are billed separately by their respective providers, bringing typical realistic all-in cost to $0.13-$0.31/minute; a HIPAA BAA costs an additional $1,000/month, and Enterprise plans typically run $40,000-$70,000/year for platform access alone, with total annual costs reaching six figures once integration, compliance, and dedicated support are added.
A genuinely important cost-transparency point worth flagging clearly: the advertised $0.05/minute figure covers only Vapi's own orchestration fee, not the full underlying voice stack — the realistic all-in cost of $0.13-$0.31/minute (2.6x to 6x higher) is the number that actually matters for budgeting a production voice AI deployment, since STT, TTS, LLM, and telephony costs are all billed separately by third-party providers.
It's aimed at developers who want explicit control over custom LLM endpoints, tool calls, structured outputs, and fallback behavior in voice AI applications rather than an all-in-one managed voice AI product, with the critical understanding that true production cost is $0.13-$0.31/minute all-in rather than the advertised $0.05/minute headline figure — anyone budgeting a voice AI deployment should calculate cost using the realistic all-in range, not the platform-fee-only figure. See our AI Agents & Automation tools directory for related tools like Retell AI and Bland AI.
What Can You Use Vapi For?
Custom voice AI agent orchestration
Coordinates LLM, STT, TTS, and telephony providers for voice AI agents.
Multi-agent voice workflows
Uses Squads to chain multiple specialized agents together inside one call.
Knowledge-grounded voice responses
Uses RAG to let agents answer from uploaded documents during live calls.
Vapi Features
- Assistants API — Configures individual voice AI agents with custom behavior.
- Squads — Chains multiple specialized agents together inside a single call.
- Function Calling and RAG Knowledge Base — Lets agents trigger external APIs and answer from uploaded documents mid-call.
Who Is Vapi For?
- Developers building custom voice AI — Uses explicit control over LLM endpoints, tool calls, and fallback behavior.
- Enterprises needing HIPAA-compliant voice AI — Uses the HIPAA BAA option for healthcare-related voice AI deployments.
Vapi Pros & Limitations
What We Like
- Genuine sub-600ms latency orchestration across LLM, STT, TTS, and telephony providers
- Explicit developer control over custom LLM endpoints, tool calls, and structured outputs
- Squads and RAG Knowledge Base support enable sophisticated multi-agent, knowledge-grounded voice workflows
Limitations
- Advertised $0.05/minute fee covers only orchestration — realistic all-in cost is $0.13-$0.31/minute
- HIPAA BAA costs an additional $1,000/month on top of usage costs
- Enterprise plans ($40,000-$70,000/year for platform access alone) can reach six figures in total annual cost
Vapi Pricing
| Plan | Price | Main Features |
|---|---|---|
| Pay-as-you-go | $0.05/min (platform fee) + third-party costs ($0.13-$0.31/min all-in) | Self-serve orchestration for voice AI agents |
| HIPAA BAA add-on | +$1,000/month | HIPAA compliance for healthcare use cases |
| Enterprise | $40,000-$70,000/year (platform only) | Dedicated support, compliance, integration |
Pricing was last verified September 2026. Check the official website for the latest pricing.
AI Listing Jungle Ranking
- Global Rank:
- #111
- Overall Score:
- 75.9/100
- Monthly Users:
- –
- Rank Change:
- ▲ 6
This ranking reflects AI Listing Jungle's own independent scoring methodology and is not an endorsement by Vapi or its company. How Our Rankings Work
Frequently Asked Questions
How much does Vapi really cost per minute?
The advertised $0.05/minute covers only Vapi’s orchestration fee — realistic all-in cost with third-party STT/TTS/LLM/telephony is $0.13-$0.31/minute.
Does Vapi provide its own LLM or voice models?
No, users bring their own LLM, STT, TTS, and telephony provider — Vapi orchestrates them.
What is the latency?
Sub-600ms across the full orchestration pipeline.
Is HIPAA compliance available?
Yes, for an additional $1,000/month BAA fee.
Our Take
Vapi's advertised $0.05/minute pricing covers only its own orchestration fee — the realistic all-in cost including third-party STT, TTS, LLM, and telephony is $0.13-$0.31/minute, a genuinely important distinction for budgeting.
Its developer-first design provides real explicit control over custom LLM endpoints and fallback behavior, valuable specifically for teams that want that control rather than an all-in-one managed product.
Vapi Alternatives
Vapi Comparisons
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